Features: -Two operational modes (addressable for the Digiplex EVO series or conventional relay operation) -Remote test mode when used with Test Trek V2 -Full audio and infrasonic spectrum analysis -7 frequency digital filters, digital amplifier gain and frequency fluctuation assessment -Impact and shock wave analysis -High-immunity to RFI and EMI signals -Adjustable sensitivity: covers up to 9m (30ft) when set to high and up to 4.5m (15ft) when set to low -TestTrek (459) used for testing available separately -Anti-tamper switch